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http://dx.doi.org/10.4191/KCERS.2003.40.3.249

Effect of Surface Modification and Additives on Nitridation of Al-AlN System  

유재영 (한국과학기술정보연구원 부품소재정보실)
김용남 (연세대학교 세라믹공학과)
황명익 (연세대학교 세라믹공학과)
박정현 (연세대학교 세라믹공학과)
Publication Information
Journal of the Korean Ceramic Society / v.40, no.3, 2003 , pp. 249-254 More about this Journal
Abstract
AI, AIN and additives such as Li$_2$CO$_3$, Y$_2$O$_3$ and CaCO$_3$ which promoted nitridation were mixed, formed and heat-treated in nitrogen atmosphere. The effect of solvent, additive and temperature on nitridation of AI-AIN system was studied. When ethanol containing 1 wt% oleic acid was used as a mixing solvent, the formation of oxide was minimized due to surface modification of AI and AIN particles. The addition of Li$_2$CO$_3$ or CaCO$_3$ as an additive extremely diminished the formation of oxide which formed during heat treatment for nitridation compared with the addition of Y$_2$O$_3$.
Keywords
Al-AlN system; Nitridation; Oleic acid; Surface modification; Additive;
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